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Choose a fabric the nozzle can grip
Open-structure textiles work best: tulle, bobbinet, powernet, polyester mesh, organza and loose-weave stretch knits. The molten polymer needs holes to flow through and lock around — that mechanical interlock, not glue, is what holds the print on. Dense wovens like cotton poplin or twill give the filament almost nothing to bite into and will peel. Synthetic fibres (polyester, nylon, elastane) bond better than cellulose ones because they soften slightly at nozzle temperature.
